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vercel-optimize — Claude Code skill: Vercel cost audit

A skill that audits Vercel spend and speed: it gathers usage and route metrics first, then recommends code and config changes.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add vercel-labs/agent-skills --skill vercel-optimize -a claude-code
Open on GitHub

What vercel-optimize does

vercel-optimize audits from observability inward. scripts/collect-signals.mjs pulls metrics, usage and contract for the linked project on a shared 14-day window, scripts/scan-codebase.mjs reads the repo, scripts/merge-signals.mjs writes signals.json. Then scripts/gate-investigations.mjs picks the routes and files worth a look. Source files open only along the import chain of a candidate.

Reference files ship with it: references/docs-library.json for citations, references/voice.md for report wording. A citation that does not match your Vercel or framework version gets dropped.

Setup needs Vercel CLI v53+ with vercel metrics, vercel usage and vercel contract, a vercel login session, a directory linked by vercel link, and Node.js 20+. Route-level advice needs Observability Plus. Never paste auth tokens into shell commands.

Next.js is the strongest target, with route mapping and playbooks for App Router and Pages Router. SvelteKit and Nuxt are supported, Astro partly. Hono, Remix and unknown frameworks are blocked by default, so the skill stops and asks whether a limited audit is fine. Without Observability Plus you get no file-level route recommendations.

What it helps with

  • see what drives the Vercel bill from usage and contract data
  • find routes that cost the most in Function Invocations and Fast Data Transfer
  • check where caching takes load off functions
  • break down Build Minutes for the project
  • look at Core Web Vitals and bot traffic before touching code

Example prompts for the agent

  • Pull the Vercel metrics and show me why this project's bill went up.
  • Which routes are the most expensive, and what should I change in them?
  • Find caching candidates from Fast Data Transfer.

How to install vercel-optimize

1Skills CLI (Vercel)

npx skills add vercel-labs/agent-skills --skill vercel-optimize -a claude-code

2Manually: put the files in place

~/.claude/skills/vercel-optimize/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/vercel-optimize/

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Questions about vercel-optimize

How do I install vercel-optimize in Claude Code?

Run npx skills add vercel-labs/agent-skills --skill vercel-optimize -a claude-code. The skill file lands at ~/.claude/skills/vercel-optimize/SKILL.md.

What does vercel-optimize do?

It collects Vercel metrics and scans the codebase, gates what deserves investigation, then ranks recommendations tied to verified files and version-matched docs.

Which frameworks does it support?

Next.js App Router and Pages Router, SvelteKit and Nuxt; Astro only partly. On Hono, Remix or an unknown framework it stops and asks whether a limited audit is acceptable.

See also

Project sponsors

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